Extending the work permit until a labor case is over

I have a labor complaint against my previous employer for not paying salaries and the case is referred to court.

1. I got a new job offer. If my new employer applies for a temporary work permit for 6 months and the case does not get over in that time, can he apply for an extension or a new temporary work permit for another six months or till the case is over?

2. My visa will be over in 2 months. What happens to my visa?

3. Can I renew it in spite of the case at least for 6 months based on work permits?